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So I have a zv3 12 now. Im upgrading parts to a 15" zv4 frame, zv4 spl soft parts/zv4 coil, and night shade spider. Im only keeping the zv3 motor. I am looking for a zv3, any size, 10 through 18. I just need the motor, also if its blown or working, i still want it. Id rather get a blown one for the price difference though. If you have a blown zv3 or know anyone with even just a zv3 motor, let me know. Thanks guys

I'm looking at building my first 4th order for a sundown zv4 rev2 15"d2. I have experience building custom boxes but have never built a bandpass. I'm not sure on what ratio to go with. I like lows but would really like something musical. It's going in a extended cab f150 powered by a shark [email protected] Could someone tell me how many cubes for the sealed and ported side and how many sqin my port should be and what's the best to tune it at? Any info is greatly appreciated!

I need a box for my sundown zv4 15 rev1. Ive got it on a hifonics 1800.1 at 1 ohm. It slams right now in its current box but It sounds like the box is tuned to 35 or 36 hz. I want to build a 30hz or a low slamming box. Im new to building boxes but I work for a cabinet company so am pretty good with wood work and measurements and I have the tools so I thought I would give it a shot. What would be a good low hitting box tuned to 28-30hz for the zv4 15. I also want to know what program is good for tuning and sizing your boxes. I drive a mercury grand marquis so space isn't really an issue. Could someone design me a box for this thing that would slam 28-30hz? Any other ideas?

So first of all, let me say that this is a subjective review, backed by some testings. Don't expect something ultra scientific - just my opinion on this beast. The subwoofer belongs to a friend of mine. It is a Sundown Zv4 rev.2 15" with NSv2 D2 coil. Here it is next to his Ground Zero Plutonium 15" and next to my humble 12". His car is an Audi A6 C4 Avant. He has an OEM 120A alt (which will be changed when possible), one 70ah AGM battery at the front and three 105ah AGM batteries at the back. He has a GZPA 1.10k HC amp, which claims to produce a bit over 10k at 1 ohm. The subwoofer box was built by me - 4,6 cu.ft. (130 litres) tuned at 32hz with an interchangeable 8" aero. Double layer mdf everywhere and triple layer baffle. And in the car: Now for some impressions. Pictures and videos do this thing no justice! If you haven't seen or touched a sub that big, it literally shocks you. I am very impressed with everything about this thing - the new cooling on the motor, the new surround, the leads.... Let me say that this is the first sundown new platform sub that I have touched with my hands. I can only imagine how big the NSv3 and the Team are... I won't post pictures of different parts of the sub - you have probably seen them already. The cooling is a bit noisy (which I think is a good thing because of the higher velocity of the air that cools the coil - Jacob could chime in on that) but the suspension itself is VERY quiet up to very high excursion. I don't think the leads will have any problems with the power you'd like to throw at it. Mechanically this thing is top notch - the linear excursion is high enough to ensure high spl levels without much distortion and the hard bottom limits of the motor/coil are pretty hard to reach. You will more likely stress the soft parts before the coil gets close to the bottom - we will get to that part later. Thermally - WOW! For a "2000" rms sub this thing cools like a champ! Good job on that! I know that this particular one is with a bit longer coil (from NSv2) but you get the idea. When we first loaded the sub, we expected that it won't require much power and we will have to bring down the gains from the previous setup (GZPW 15SPL tuned at 47hz, wired at 0,5 ohm). Boy, was I mistaken! We only had to adjust the filters a bit. If the power we gave it was clean - no signs of any smell or overheating. It only smelled when the power was clipped. Keep in mind that the sub was rather new on that moment, so It wasn't broken in completely. From then to now there is a night and day difference. With this 10k amp, wired at 1 ohm and with this box, we didn't experience any mechanical trouble near or above tuning. The amp would start clipping before we could stress the suspention enough to turn it down. We left the LPF at 40hz with 12db slope. Of course, we had to use subsonic, but nothing drastic. When the cone exceeds its linear travel, the suspension starts stressing and there is BL distortion, so it gets a bit loud mechanically, but we're talking over 3" p-p. Mechanical limit of the motor is over 4" as you all know - we didn't dare reach it. It's not healthy for the driver either Surprisingly, even with a 32hz tuning and a bigger than suggested box, it played the higher frequencies quite well - was very surprised on that! I wanted to tune this thing at 28-29, but there wasn't enough space for that - we used a straight aeroport and we had to keep an adequate distance between the walls and the mouths of the port. Next box will definitely be slightly bigger on volume and lower on tuning! On its first competition it did 151,7db at 36hz on the dash - driver's door open and with people pushing the doors. It also did 135,6db at 25hz, 149db at 33hz and 149,7db at 40hz. It wasn't broken in completely, but I can't say how much that will affect the scores. We measured the power going to the sub on different frequencies using the clamping method, which is NOT the most adequate way to do this, but it gets the work done. There was NO clipping during these tests, therefore the sub stayed cool the whole time and there wasn't any sign of smell, even when measuring at tuning. I'll just put the numbers we got at tuning (32hz) and at best score (36hz). These tests were NOT done when we measured the system on the competition - when we measure we introduce a bit of clipping to get the score higher. System voltage stayed between 12.3-12.8 during the tests. At 36hz 116.1V x 24.7A = 2867 watts, rising to 4,7 ohms At 32hz 109.9V x 44.0A = 4835 watts, rising to 2,5 ohms I repeat, these tests were done with no clipping and without fully charged batteries. The test tones were played for a couple of seconds to ensure that the sub doesn't have any problems with longer playing on that power. The power needed to achieve the scores I mentioned earlier would have been a bit higher. So yeah, I can pretty much say that on 2000 watts, be it clamped or with a 2-3k amp, this subwoofer will have ABSOLUTELY NO problems (if it is clean, of course). If you keep the power clean and adjust the subsonic properly, you could feed this thing A LOT of power. And that's daily - on burp it could and would handle much more. I don't even understand how people can listen to this with a 3-4k amp for example - it just begs for more (clean) power! If I could wire this thing at 0,5 ohm on this 10k amp (after getting proper alternator) - I'd deffinitely do it. It's better to keep a powerful amp down, rather than clipping a smaller one. Of course, with higher power comes greater responsibility, so I'd have to adjust the gains and filters accordingly, but overal I don't think I'll have a problem and it will perform better than now. Do I recommend on going over the rated power? Absolutely no! At least for those who don't know what they are doing. You will void your warranty and may damage the subwoofer. Thank you for your time, hope you enjoyed my review! Here's a little "shirt" trick for finale. Wait a bit for the good part.

This isn't my first build, but it is the first that i am documenting. I am not an expert, but I do think i know as much or more than anyone working at my local shops. That being said I have a lot to learn. The build is nothing too special, I am happy with it and open to suggestions/ constructive criticism and questions.
The Car Details:
2005 MINI Cooper S (R53), 65K miles, chrono package, NON-JCW.
So far:
Performance/Appearance
-Strut Tower Reinforcement Plates
-LED Fogs and Running lights
-Conti Extreme Contact DWS's
-10% Tint all around.
-Cravenspeed Stubby Antenna
-Cravenspeed Dipstick
-17% Cravenspeed Pulley (w/ 532 belt)
-NGK 7 Colder Spark Plugs
-ATI Racing Crank Pulley
-ScanGauge 2 (boost, AIT, voltage, ect)
-5Zero4 R53 Door and and scoop graphics (not yet installed)
-DDM powdercoated intake with Dry paper Filter
-Upper Motor Mount From Greene Performance
Audio
-Pioneer DEH-80PRS
-Stock component tweeter and 5.25" frontstage (alpine or Harmon Kardon made them) and stock 6x9 rears
-XS Power D4700 battery (in stock location in the rear floor)
-SHCA OFC 1/0 run front to back and for grounds for Big 3, also used for amp +/- all fused with SHCA fuses
-SHCA RCAs
-LC-1
-SHCA 8 gauge OFC wire for speaker wire
-Sundown ZV.4 10"
-Sundown SAZ-2500D v.2
-Custom Box 1.5 cuft net, tuned at 32 Hz wrapped in red (Thanks to JoeX for the design help)
Coming Soon Eventually (In no particular order)
-Chrome delete/blackout
-Rear seat delete
-Custom Exhaust (header back, prob catless)
-RMW fully built 1.8 or 2.0 Liter Stroker Engine
-RMW "Jesus" Head
-RMW Custom Race Header
-RMW Grand Am Cam
-RMW Tune
-Borg Warner Turbo, TVS, or Rotrex Supercharger Upgrade (I'll decide when i cross that bridge)
-Meth injection Kit
-Vipec ECU
-Suspension Upgrades
-Enkei Racing PF01 17" wheels
-R56 big brake swap
-Roll cage/6point harnesses.
-Front stage and rear fill upgrades and amp
-Switching the Zv4 10" for an 8" or 2 for weight/charging
-Singer Alt (still discussing practicality due to stability issues at High RPM, NOT MIKE'S FAULT)
-Sound deadening (If I track the car i will not be worrying about this but if it remains a DD then I will)
Notes
I recently graduated with a biology degree and am headed soon to complete a masters of medical sciences. From there it will be off to Med school, so this will be a slow build. The second issue is that this is my daily so, I cant do anything that will put it out of commission for more than a weekend. Some of the stuff I listed is wishful, but I do plan on getting everything listed eventually if i can keep this car and get a different daily (possibly post grad or medschool). I have and probably will continue to do all the work myself. Im learning as I go.
PICS COMING SOON!

Looking for anyone that can provide dimensions and a cut sheet list for a single sundown audio zv4 15. Wanting around a 7 cubic foot box, The box will be in a 1995 Yukon so I have a good bit of space to work with as far as measurements go, don't have exact measurements off the top of my head. Any help would be nice.

These parts where bought for some problematicly built Fi BTL N3s that had issues from the get go. Pretty much drastic coil rub, even after drop in recones coil rub, but that made me aware of the issue and what was happening.
Which was the parts being used on them made the whole assemble too tall, and required you to stretch the surrounds about 1/2 inch down to glue the surround to the basket landing which ended up making the nice half roll surround somewhat flattened out, and caused the woofer cone to only travel so far prior to the surround restricting it and pulling the coil back unevenly.
Pretty crappy ordeal considering each woofer was $750, plus shipping, and only had about 21-25mm MAX linear excursion on such a high strength motor.
There are a few ways to fix this problem on the 12inch models, some easier then others, but I took the beastly method at fixing the issue.
So just a before and after pic, parts are just stuck together.
Baskets removed.
New baskets on.
Gluing the collar, and then the spiders.
Gluing and clamping the outer edges of the spider packs.
Spider packs glued up.
Gluing coil/spider assembly.
One glued and clamped, time to start with the 2nd spider pack.
The second spider pack glued down.
The speaker terminals being used.
Top wire is knukonceptz kolossus 4awg (slightly over sized compared to a real 4awg wire) had to trim a little bit of wire for it to fit.
Bottom wire is old Stinger iirc 6awg, fits perfect with no trimming.
soldering the tinsel leads to the terminals.
Getting ready to glue the surrounds to the surround landings.
Anyone interested in the finished pics of them sitting next to some Digital Design 9512's I recently reconed???

Ok, I need your guys help. I bought a 13 Challenger. I come to realize that I in fact have enough room for my 18" Sundown ZV4-18 powered by a Crescendo 3500. My question is what position shall I place subs and port both up both back or sub up port driver side. building enclosure @ 7cubes net tuning @33hz with 81 sq inches of port area. Your help with this will be greatly appreciated.

I currently have a 4th order box with 2 sundown zv4 custom on a nendo 3500 @.50 ohm walled at the C pillar. My question is it is not hitting numbers on music that I would like to see. I did a 146.5 @ 36hz at the head rest and I want to know do yall think i would get better numbers building a regular wall or perhaps try and redesign my 4th?
My 4th is 4cuft sealed and about 9.5cuft ported with 144 sqin of port tuned to 45hz. Downside to this box is there is about 3 inches more on the sides I could have used.
I build it outside the truck to slide it through back but I am thinking about building next one inside truck using 2x4s as structure wall around box.
So question is maybe for better spl number on music should i just build another 4th inside the truck or do a standard ported wall??? any help would be nice. I see some trucks hitting higher numbers with a flat ported wall.

Here is my build log. The vehicle is a 98 GMC ext cab K1500, with the 3rd door. This build was supposed to be 1 Sundown X 15 on 1 SQ 2200 until SSA had a pretty awesome deal when the zv4's first came out that i couldn't pass up. I already order the 2200 thinking I was getting an X so the ZV4 is going to be a little under powered. On to the pics.. The Truck. 182k and still going strong She's no pavement Princess First day I got her Next to the Wife's Sd-2 8" A Picture of all the Original Equipment Singer 250 vs Stock Installed with XS Power D3400 Started with the false floor connected to the original seat belt bolts. I wanted a low end monster so I Built a box that was 4.2 cubes net tuned to 26hz. It easily played 20hz and fell off after about 37hz. The lows were pretty awesome for a single sub. In the truck

Hey guys! We recently tore down our 4th order in the Expedition, 4 zv.4 18's on ab750.1 for an attempt at a 6th order!! This is our first attempt ever at a 6th order in general so might as well share our mistakes and progress with you fellow bass heads!
Our 4th order managed a 151.2 sealed on dash, we are hoping for 153 with this build! Bandwidth estimated, 18-55 htz! Stay tuned! Will update over time, (not working on it every day)!
Time to drop 500 bucks on wood. Ill take em all!
LIL MAN PUTTIN IN WORK!
Just a bunch of beginners building a wall nothin out of the ordinary
Ran into a space issue with the 45 degree angles.. Decided to go with the Corners to add space.
Here at beginner central, We like to complicate things as much as possible. Well, in a sense save some time! lets cut through all the baffles at once! YEAH! MERICA!
Thanks for tuning in, Current progress after 2 days of work, Top, corners, sides, bottom, and one baffle is in! more progress to come! Any and all criticism and/or comments welcome! BASSHEADS!

I was looking to get a sundown zv.4 18 in my 2009 ford focus. I figured out that after the displacement of the woofer and the port that I would have around 7 Cu. Ft. of usable air space. the port would be 5'' wide and tuned to 32 hz. the dimensions of the box are 40 wide, 20 tall, and 22 deep. For my amplifier, i was thinking of using an audiopipe 3000.1. I know that sundown subwoofers can take a decent amount more power than what they are rated, but I am a little concerned that this might be too much power. I think the enclosure will work well with this subwoofer but I wanted to try to get a second opinion on the forum. Let me know what you think or if there is any suggestions that would make this build even better. Thanks.

Hey guys, I'm not looking for specific design plans just yet, but I am wanting a bit more output from my Zv.4 10". It is on an SAZ-2500D @ 1 ohm and in a 1.5cuft tuned at 32Hz currently. Its difficult to explain, but the best i can explain it is that the box is choking the Sub out. How big of a box can I put it in and still retain some SQ? Or other tips for increasing output.
Btw the car is an 05 Mini Cooper S and the box is sub up/port up currently.

Hey guys, im new to this forum but ive been into car audio for the last 6 years or so. I want to post and share the progress of my newest and biggest build yet......
Feel free to leave comments and/or suggestions. im open to discuss and answer any questions anyone may have
If youd like you can follow me on instagram and see some videos soon. user name: rgut0112
Here is my trailblazer it is being built in
I bolted 2x4s to the factory seat bolts to screw down the false floor and also 3 big bolts in the rear where the factory strap points are. (And some temporary music while i do my build)
Walls are up
Baffle cut out
All walls and "ceiling" done along with steel bracing in the sealed section
Everything resined and test fitting the baffle before i did the steel bracing
port somewhat finished
test fitting the port and as you can see i did 45s, 3/4" steel rod through the sealed section, and sanded, painted, and some more sanding
Loading wall in and test fitting port again
some wiring waiting to be done and temporary amp to test it all out before i decide what type of power im running

I just installed my sundown zv4 15 to my Hifonics 2000 amp down to 1 ohm. When I play my songs and turn it up the amp cuts out and the subwoofer bottoms out at a very low level. I'm not an idiot and turn the gain all the way up it's almost halfway up. I'm very confused on what could be wrong

I have a question about the subwoofer enclosure I am building for my sundown audio zv4 15.
My specs so far are:
39 wide
18 tall
18 deep
The thing is the subwoofer is far away from the port would this be a problem? It is the center of the other half of the box. Should the subwoofer be in the center of the box? the port is on the side of the box

Managed somehow some way to pull off a sixth order in my jeep containing TWO Zv4 18s on a CT Sounds 7000.1 Just a little background on me, used to have a few different enclosures playing around with some 12" JL W6's Some of yall may have seen my ported box tuned to ~15 hz, The 4th order tuned to 38, The "Upside Down" ported enclosure, and a few different ported boxes at various tuning's. http://www.youtube.com/kessel921 Gonna start with two photos to make sure everything gets uploaded correctly

I have done some searching and there seems to be some debate. I haven't seen a thread about this topic for this particular sub so I figure I would just ask. Sub up port back? Sub up port up? Sub back port back? etc. etc. This is my daily driver and I listen to everything from rap and dubstep to metal at times. I plan to demo it and maybe compete at local shows this summer.
Amp will be 3500 of some kind, not sure which route I am going yet. Singer Alt is getting ordered this week as well so electrical should be solid.
I figured the easiest way to get her home was to belt her in.
This is by far, the largest sub I have ever owned. I have been grinning like a teenager on prom night since I got home.

Hello, i built my system in December/January and
thought that i would put some pictures up of it.
The system consist of:
1 Sundown Audio Zv4 15"
2 Power Acoustik Bamf 5500/1D linked
1 Power Acoustik Bamf 1600/4
Ground Zero gzhc 16x 6.5inch 2 way speakers in front and rear dors
1 Optima yellow top 55a in the front
2 Optima yellow top 75a in the back
Pioneer avh x7500bt head unit
I have a 120a alternator that i need to replace my current 90a with, and i also want to get some sundown amps in the future when there is money for that
im still messing with the settings so some wires at the amps still need to get cleaned.

Tossing up a single 15'' Sundown Zv4 or two 12'' XCON's tuned for lows. I know the Sundown was built specifically for this but would it be able to offer the same amount of throw that 24'' of cone area the two twelves would give me is what I would like to know.

Right now I have a Fi BL15 and I am about to seal it in my trunk. I was looking into putting two of the Sundown Audio Zv4 12's instead of my Fi Sub. This project is down the road but still. Which would be a louder/better (daily) setup. If I decide on the 15 I could just swap out subs when I get it but if dual 12's would be better than I'll do that.